List Data formatting Subtotal

I am using the "list data wizard" in SAS EG 7.1 and having some trouble on formatting.

How do I change the output from printing the variable in the "Subtotal Of" to the word "subtotal"?

Example, I have the variable "At Risk" in the "subtotal of" role. The two values of at risk are "yes" or "no". In the output it is subtotaling these correctly, however instead of saying subtotal next to the values, it says the word "At Risk". I would like to change that to either say "Subtotal" or "Yes Subtotal" / "No Subtotal".